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tangare [24]
3 years ago
15

Find the product of 21 and (6.3 • 10-4)

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0
21 (6.3 * 10^-4) = 
21 (6.3 * 1/10^4) =
21 (6.3/10^4) =
21 (6.3/10000) = 
21 * .00063 =
0.01323

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Keith_Richards [23]
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3 years ago
For 15 points please help
iragen [17]

Answer:

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Step-by-step explanation:

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2 years ago
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aev [14]

Answer: (B) -625

<u>Step-by-step explanation:</u>

Given the sequence {-500, -100, -20, -4, -0.8, ... }, we know that that the first term (a) is -500 and the ratio (r) is \dfrac{-100}{-500}=\dfrac{1}{5}

Input those values into the Sum formula:

S_n=\dfrac{a(1-r^n)}{1-r}\\\\S_8=\dfrac{-500\bigg(1-\dfrac{1}{5}^n\bigg)}{1-\dfrac{1}{5}}\\\\.\quad=\dfrac{-500\bigg(1-\dfrac{1}{390,625}\bigg)}{\dfrac{4}{5}}\\\\.\quad=\dfrac{-500\bigg(\dfrac{390,624}{390,625}\bigg)}{\dfrac{4}{5}}\\\\.\quad=\dfrac{5(-500)(390,624)}{4(390,625)}\\\\.\quad=-624.998\\\\.\quad=-625\quad \text{(rounded to 2 decimal places)}

4 0
3 years ago
PLS ANSWER THIS ASAP WILL MARK BRAINLIEST!!!!
Morgarella [4.7K]

Answer:

x=27

Step-by-step explanation:

The formula for the volume of a pyramid is L*W*H/3

We know all three, being x, x, and x/9

So after we plug those in, we see that x^3/27 = 27

then solving for x we get √27*27 which is 27

Please Vote me brainly, it really helps, and i hope i helped you.

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Rewrite the equation from part A by factoring tge side that contains the variable r. Part A: 3r-6
Vilka [71]

Answer:

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Step-by-step explanation:

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